---English has a large vocabulary hasn’t it?------Yes.more words and expressions and

问题补充：

------ English has a large vocabulary, hasn’t it?

------Yes.more words and expressions and you will find it easier to read and communicate.

A. To know

B. Knowing

C. Know

D. Known

答案：

A. To know

B. Knowing

(答案→)C. Know

D. Known

解析：考查动词形式。祈使句 + and + 陈述句，故用动词原形。句意：——英语有很大的词汇，是不是？——是的，知道更多的单词和词句，你就会发现读和交流更容易。